My Inquiry
My Account
Renesas 70V3399S133PRFI8
- Part No.:
- 70V3399S133PRFI8
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 128-LQFP
- Datasheet:
-
70V3399S133PRFI8.pdf
- Description:
- IC SRAM 2MBIT PARALLEL 128TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,790
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
70V3399S133PRFI8 from Integrated Device Technology is a high-speed 256K × 18-bit synchronous dual-port SRAM with true dual-port architecture enabling simultaneous read/write access to the same memory location from independent left and right ports. It operates at 133MHz (7.5ns cycle time), supports selectable 3.3V or 2.5V I/O interfaces per port, and delivers 4.2ns clock-to-data-out in pipelined mode for real-time data buffering in telecom line cards and packet switching engines.
For engineers reviewing the 70V3399S133PRFI8 datasheet, 70V3399S133PRFI8 pinout, 70V3399S133PRFI8 application, or 70V3399S133PRFI8 equivalent, key selection criteria include its industrial temperature range (–40°C to +85°C), dual chip enable for depth expansion, JTAG-compliant boundary scan (on BGA packages), and pipelined output mode-critical for deterministic latency in high-throughput inter-processor communication systems.
Technical Context
The 70V3399S133PRFI8 implements fully synchronous operation on both ports with registered address, data, and control inputs-enabling minimal 1.7ns setup and 0.5ns hold times at 133MHz. Its dual-port memory array uses dedicated input/output registers per port, supporting burst-mode unidirectional or bidirectional data flow without external latching.
Each port features independent power domains: core VDD fixed at 3.3V ±150mV, while I/O voltage (VDDQ) is configurable to either 3.3V or 2.5V via OPTL/OPTR pins-allowing mixed-voltage system interfacing. The device supports counter-enable and repeat-address functionality for sequential memory access, and includes dual-cycle deselect (DCD) for clean pipelined output transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256K × 18 bits (4.6 Mbit total); enables 18-bit parallel data paths per port for wide-bus applications like DSP co-processing. |
| Max Clock Frequency | 133 MHz (7.5 ns cycle time); guarantees deterministic timing for real-time packet buffering in industrial networking equipment. |
| Access Time | 4.2 ns (clock-to-data-out, pipelined mode); ensures sub-5ns latency for time-critical read operations in FPGA-based control loops. |
| Operating Temperature | –40°C to +85°C industrial grade; validated for deployment in base station RF modules and railway signaling hardware. |
| I/O Voltage Support | Selectable 3.3V or 2.5V per port via OPTL/OPTR; eliminates level-shifter requirements when interfacing with legacy 3.3V FPGAs and modern 2.5V ASICs. |
| Power Supply | VDD = 3.3V ±150mV (core); VDDQ = 2.5V ±100mV or 3.3V ±150mV (I/O); decoupling must follow separate VDD/VDDQ rail guidelines. |
| Standby Current | ISB1 = 160 mA max (both ports deselected); enables low-power idle states in always-on telecom infrastructure without external power gating. |
Pinout & Package
70V3399S133PRFI8 is packaged in a 128-pin TQFP (PKG128) with 0.5mm pitch, 14mm × 20mm body, and 1.4mm height. JTAG is not supported due to pin count limitation; pipelined output mode is fixed (no PL/FT select).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKL / CLKR | Port-synchronous clock input | Registers all address/data/control signals on rising edge; critical for meeting 1.7ns setup/0.5ns hold at 133MHz. |
| CE0L/CE1L, CE0R/CE1R | Dual chip enable per port | Enables depth expansion without glue logic; CE0X=VIL & CE1X=VIH activates port; both high disables port. |
| R/WL / R/WR | Read/write direction control | Synchronous active-high signal; determines data flow direction per clock cycle-no external direction control needed. |
| UBL/LBL, UBR/LBR | Upper/lower byte enable | Independent 9-bit (I/O9–I/O17) and 9-bit (I/O0–I/O8) masking per port; supports partial-word writes without read-modify-write. |
| ADSL / ADSR | Address strobe enable | Latches current address into internal counter; enables auto-increment for burst transfers without external address generation. |
| OPTL / OPTR | I/O voltage select | VIH = 3.3V I/O interface; VIL = 2.5V I/O interface; sets VDDQX supply requirement and VIH/VIL thresholds. |
| VDDQL / VDDQR | I/O power supply per port | Must match OPTX setting: 3.3V if OPTX=VIH, 2.5V if OPTX=VIL; separate decoupling required per VDDQ rail. |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port memory cells | Enables concurrent read and write to identical addresses-essential for lock-free inter-processor communication in redundant control systems. |
| Self-timed write cycle | Eliminates external write pulse generation; simplifies timing closure in high-speed designs by embedding write timing within clock domain. |
| Dual-cycle deselect (DCD) | Prevents bus contention during port disable by delaying output disable by two clocks-ensures glitch-free bus release in multiplexed backplanes. |
| Separate byte controls per port | Allows independent 9-bit upper/lower byte writes without disturbing adjacent data-reduces bandwidth overhead in protocol header manipulation. |
| Counter enable & repeat address | Supports automatic address increment for burst reads/writes; REPEATX reloads last ADS-loaded address-ideal for circular buffer management. |
Applications
| Telecom Line Card Buffering | Industrial PLC Data Exchange |
|---|---|
Use Scenario: Storing and forwarding variable-length Ethernet frames between MAC and PHY layers in carrier-grade aggregation switches. IC Role / Device Role / Timing Role: Dual-port SRAM acts as a non-blocking first-in-first-out (FIFO) buffer with independent read/write clocks-eliminating arbitration delays between traffic scheduler and packet parser. Use Value: 4.2ns pipelined access time ensures frame metadata is available within one clock cycle of arrival, enabling sub-microsecond latency for time-sensitive control plane packets. | Use Scenario: Synchronizing I/O state updates between redundant CPU modules in safety-critical programmable logic controllers. IC Role / Device Role / Timing Role: Shared memory resource allowing lock-free data exchange via dual-port addressing-each CPU accesses its dedicated port without software semaphore overhead. Use Value: Industrial temperature rating (–40°C to +85°C) and 133MHz throughput guarantee deterministic response under thermal stress in factory automation cabinets. |
| FPGA-Based Motor Control | DSP Co-Processor Interface |
Use Scenario: Real-time storage of position encoder samples and PWM command history in servo drive firmware running on Xilinx Zynq SoC. IC Role / Device Role / Timing Role: High-bandwidth memory bridge between ARM processor (left port) and programmable logic (right port)-enabling zero-wait-state data sharing. Use Value: Selectable 2.5V I/O on right port matches FPGA bank voltage, while 3.3V on left port interfaces directly with ARM GPIO-removing level shifters and PCB area. | Use Scenario: Offloading FFT coefficient tables and intermediate results between TI C66x DSP and host ARM processor in radar signal processing units. IC Role / Device Role / Timing Role: Dual-port SRAM serves as shared scratchpad memory with pipelined read capability-DSP writes coefficients while ARM reads processed outputs concurrently. Use Value: 256K × 18 organization provides sufficient space for 1024-point complex FFT twiddle factors plus 2× data buffers, reducing external DRAM accesses by 65%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C1362BV33-133AXC | 128K × 18 organization; 133MHz max; 3.3V-only I/O; no OPT pin support | Lacks per-port voltage selection-requires external level translation when interfacing mixed-voltage subsystems | Choose when system uses uniform 3.3V logic and smaller memory depth suffices; lower cost but less flexible. |
| AS7C3256A-133JCIN | 256K × 16 organization; 133MHz; 3.3V core/I/O; no JTAG or counter features | 16-bit width limits data path efficiency for 18-bit protocol headers; no address counter or repeat functionality | Choose for cost-sensitive applications where 16-bit data width is acceptable and advanced addressing features are unnecessary. |
Compared with CY7C1362BV33-133AXC and AS7C3256A-133JCIN, the 70V3399S133PRFI8 uniquely supports per-port 2.5V/3.3V I/O selection, integrated address counter with repeat, and industrial temperature operation-making it optimal for mixed-voltage, high-reliability embedded systems requiring deterministic latency and flexible memory expansion.
Availability
70V3399S133PRFI8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and aerospace avionics requiring stable component supply across extended lifecycle programs.
Supply support for 70V3399S133PRFI8 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Integrated Device Technology (IDT), now part of Renesas Electronics, designs high-performance timing, memory, and interface solutions for communications, computing, and industrial markets.
The 70V3399S133PRFI8 belongs to IDT's high-speed synchronous dual-port SRAM product line, engineered specifically for deterministic-latency data buffering in multi-processor systems requiring concurrent access without arbitration overhead.
FAQ
What is the maximum operating frequency of the 70V3399S133PRFI8?
The 70V3399S133PRFI8 is rated for 133MHz operation with a guaranteed 7.5ns clock cycle time across the industrial temperature range (–40°C to +85°C). This frequency is validated under worst-case voltage (3.15V VDD) and temperature conditions, and supports full synchronous operation on both ports without derating.
Does the 70V3399S133PRFI8 support JTAG boundary scan?
No, the 70V3399S133PRFI8 in the 128-pin TQFP package does not support JTAG boundary scan due to insufficient pin count-JTAG signals (TCK, TMS, TDI, TDO, TRST) are omitted per the datasheet note on page 4. JTAG is only available on the 208-pin and 256-pin BGA variants of the 70V3319/99 family.
Can the left and right ports of the 70V3399S133PRFI8 operate at different I/O voltages?
Yes-the 70V3399S133PRFI8 supports independent I/O voltage selection per port: OPTL sets left-port VDDQL to 3.3V or 2.5V, and OPTR sets right-port VDDQR accordingly. Both ports may operate at 3.3V, both at 2.5V, or one at each voltage-enabling seamless interfacing between heterogeneous logic families without external level shifters.
What is the function of the ADSL and ADSR pins on the 70V3399S133PRFI8?
ADSL and ADSR are address strobe enable inputs that latch the current address into an internal counter register on the rising edge of CLK. When CNTENL/R is asserted, this enables automatic address increment for burst transfers. REPEATL/R allows reloading the last valid ADS-loaded address-critical for implementing circular buffers or ping-pong memory schemes in real-time control firmware.
Is the 70V3399S133PRFI8 pin-compatible with other members of the 70V3319/99 family?
No-pin compatibility is package-dependent. The 70V3399S133PRFI8 in 128-pin TQFP has a fixed pinout distinct from the 208-pin fpBGA and 256-pin BGA variants. While functional signals (CLKL, R/WL, etc.) map consistently across packages, physical pin locations, power/ground distribution, and omitted features (e.g., JTAG, PL/FT select) differ significantly-requiring separate PCB layouts for each package option.
70V3399S133PRFI8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 128-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 2Mbit
- Memory Organization:
- 128K x 18
- Memory Interface:
- Parallel
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 4.2 ns
- Voltage - Supply:
- 3.15V ~ 3.45V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 128-TQFP (14x20)
70V3399S133PRFI8 FAQ
1.How can I place an order for 70V3399S133PRFI8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 70V3399S133PRFI8 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 70V3399S133PRFI8 reliable?
The price and inventory of 70V3399S133PRFI8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 70V3399S133PRFI8 is usually 5 days.
3.What payment methods are accepted for 70V3399S133PRFI8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 70V3399S133PRFI8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 70V3399S133PRFI8?
70V3399S133PRFI8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 70V3399S133PRFI8 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 70V3399S133PRFI8?
For technical support, including 70V3399S133PRFI8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 70V3399S133PRFI8 requirements.
6.How does Aetrix verify that 70V3399S133PRFI8 is sourced from the original manufacturer or authorized distributors?
All 70V3399S133PRFI8 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 70V3399S133PRFI8 meets industry standards.
7.What is the process for return or replacement of 70V3399S133PRFI8?
All 70V3399S133PRFI8 units undergo pre-shipment inspection (PSI). If there is an issue with 70V3399S133PRFI8, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 70V3399S133PRFI8 part is unused and in its original packaging.
Return procedure for 70V3399S133PRFI8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
70V3399S133PRFI8 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
